Who doesn't love a good knock knock joke? One of these 12 knock knock jokes might make you actually laugh...
What is as Big as an Elephant, but Weighs Nothing at All?
What Do You Call Your Dad When He Falls Through The Ice?
What is So Delicate That Saying Its Name Breaks It?
What Do You Get When You Put Root Beer In A Square Glass?
What Do you Get When You Mix Birth Control and LSD?
Which Letter of The Alphabet Has The Most Water?
What Word Begins and Ends with an E but only has One Letter?